You only have one key to your house. Your spouse has the other one. What happens when one of you loses it?
Or maybe you’re a landlord with five rental properties and you need spares for emergencies. Or you just moved in and you want copies for your kids who get home before you do.
Whatever your situation, having spare keys isn’t just convenient. It’s essential. And getting them made right matters more than you might think.
At MLine Locksmith, we provide professional key duplication services throughout Chester County and Delaware County. We make accurate, quality copies that actually work smoothly, whether you need one spare for your home or dozens for your business.
Call 267-609-9459 or request a quote. We offer both mobile service (we come to you) and shop service at your convenience.
Here are the most common situations where people realize they should have had spares made earlier:
This is the most common situation. You bought the house and got two keys. One disappeared years ago. Now you’re down to one, and if you lose it, you’re in trouble.
Having only one key means you’re one pocket mishap away from being locked out and needing emergency service.
Your kids get home before you do. Your spouse needs to get in when you’re at work. Your elderly parent stays with you sometimes and needs their own key.
One key doesn’t work when multiple people need access to the same property.
Someone needs to get into your house regularly when you’re not home. You could give them your only spare and hope they don’t lose it, or you could get a proper copy made.
You need spare keys for maintenance emergencies, tenant turnover, and property showings. Having only one copy per unit is asking for problems.
New employee starts and needs office access. Contractor needs temporary access to your building. Manager needs a key to open and close.
Every business needs multiple copies of keys for different people at different access levels.
You used to have two keys. Now you have one. Every time you leave the house, you’re worried about losing the last one.
Getting a replacement spare restores peace of mind.
Some people keep a spare key hidden outside (in a better spot than under the doormat). Others leave one with a trusted neighbor. Smart move, but you need an extra copy first.
Not all key copies are created equal. Here’s why:
Those automated key machines at Walmart, Home Depot, or Lowe’s? They’re hit or miss. Sometimes they work fine. Sometimes they cut keys that stick, jam, or don’t work at all.
The machines need regular calibration and maintenance. They often don’t get it. The result is imprecise cuts that cause problems.
Those KeyMe kiosks you see in malls and grocery stores? They’re convenient, sure. They’re also frequently inaccurate.
The technology sounds good in theory, but in practice, we see a lot of people who got keys made at kiosks that don’t work right. They stick, they’re hard to turn, or they work sometimes but not always.
If your original key is worn down from years of use, copying it means copying the wear. You end up with a key that’s already degraded before you even start using it.
A professional locksmith can identify when a key is too worn to duplicate reliably and recommend rekeying instead.
Quality key blanks are made from solid brass or durable nickel-plated brass. Cheap blanks use softer metals that wear out quickly and can break in your lock.
We use quality blanks that last.
Professional key-cutting equipment is calibrated regularly and maintained properly. The cuts are precise, the edges are clean (deburred), and the key works smoothly from day one.
When we make you a copy, we test it in your actual lock before you leave. If it doesn’t work perfectly, we don’t charge you for it.
This is what most people need. Keys for:
Cost: $8-$12 per key typically
Keys for businesses, including:
Cost: $10-$15 per key typically, depending on key type
High-security keys like Medeco, Mul-T-Lock, Abloy, and ASSA require authorization to duplicate. These are patented keyways with restricted duplication.
If you have the authorization card and proof that you’re authorized to duplicate these keys, we can make copies. Without authorization, we can’t (and won’t). This protects your security.
For more information about high-security systems, check our high-security locks services.
Cost: $20-$40 per key depending on the system
If your property uses a master key system, we can duplicate keys at the appropriate access level. This requires verification and proper authorization.
Some keys are designed to be non-duplicable or require special authorization:
We’ll be honest about what we can and can’t do.
Sometimes making a copy isn’t the solution you actually need:
If your key is heavily worn, copies made from it will be even worse. In this situation, rekeying the lock with fresh keys is the better solution.
Our rekeying services can give you a fresh start with new keys that work smoothly.
If you don’t have any keys left, we can’t duplicate what doesn’t exist. You’ll need lockout service and rekeying.
Check our lockout services if you’re currently locked out.
If your ex, former employee, or previous tenant might have copies of your keys, making more duplicates doesn’t solve the security problem.
You need to rekey the locks so all old keys stop working and you start fresh with new keys you control.
Tired of carrying five different keys for five different doors? Duplication won’t help. You need rekeying so all your locks work with the same key.
If your lock is stiff, jamming, or not working smoothly, duplicating the key won’t fix the underlying problem. You need lock repair or replacement.
Our lock repair services can fix sticky, worn-out locks.
Call or request a quote. Tell us what type of keys you need duplicated and how many copies. We’ll give you pricing and schedule service.
Mobile service: We come to you anywhere in Chester or Delaware County. Bring our equipment, make your keys on site, test them in your actual locks. Convenient if you have multiple properties, can’t leave, or prefer the convenience.
Shop service: You bring your keys to us. We make copies while you wait or you can drop off and pick up later. Good if you’re nearby and prefer to come to us.
We check the condition of your original key to make sure it’s in good enough shape to duplicate reliably. If it’s too worn, we’ll let you know and recommend alternatives.
We match your key to the appropriate blank (correct keyway, proper metal quality). This ensures compatibility and durability.
We use calibrated, professional key-cutting equipment to duplicate your key with precision. Clean cuts, proper depth, smooth edges.
We remove any rough edges or burrs so the key slides smoothly into your lock without catching or scratching.
We test the new key in your lock (if you’re with us) or in our test locks (if you brought the key alone) to ensure it works perfectly.
If the key doesn’t work smoothly, we don’t charge you for it. We remake it until it’s right.
For your home:
For landlords:
For businesses:
Choose mobile service if:
Choose shop service if:
Both options give you the same quality. It’s just about what’s more convenient for your situation.
Quality blanks and equipment
We use professional-grade key blanks and regularly calibrated cutting equipment. Your copies work smoothly and last.
We test before you pay
Every key is tested to ensure it works. If it doesn’t work perfectly, we remake it or don’t charge you.
Mobile service available
We come to you anywhere in Chester or Delaware County. Test keys in your actual locks on site.
Honest advice
If your key is too worn to duplicate well, we’ll tell you. If you need rekeying instead of duplication, we’ll explain why. No upselling, just honest professional advice.
We serve both counties
Full coverage across Delaware County and Chester County. Media, West Chester, Upper Darby, Exton, Havertown, Springfield, and everywhere in between.
Licensed and insured
Professional locksmith service from trained, credentialed technicians.
Fair pricing
Transparent pricing with no hidden fees. You know what it costs before we start.
For complete residential security solutions beyond key duplication, check our residential locksmith services. For business needs, see our commercial locksmith services.
Where to keep spares:
Where NOT to keep spares:
Label your keys carefully:
Replace worn keys:
We provide key duplication throughout Chester County and Delaware County:
Delaware County: Media, Upper Darby, Springfield, Havertown, Broomall, Newtown Square, Glen Mills, Lansdowne, and throughout Delco
Chester County: West Chester, Exton, Downingtown, Paoli, Malvern, Devon, Wayne, Berwyn, Villanova, St Davis, Phoenixville, and across the county
If you’re in either county, we’ll come to you.
Standard residential keys are typically $8-$12 per copy. Commercial keys run $10-$15. High-security keys with proper authorization are $20-$40 depending on the system.
Most standard keys can be duplicated in just a few minutes. If you need multiple copies or have special keys, it might take a bit longer.
Yes, as long as your key is in good condition. If it’s too worn, we’ll recommend rekeying instead so you get fresh, working keys.
We test every key before you leave. If it doesn’t work perfectly, we remake it or refund you. We stand behind our work.
For mobile service, yes, we test the key in your actual lock. For shop service, we can duplicate from the key alone, but testing in the actual lock is always better.
We focus on residential and commercial key duplication on this service. For automotive keys, check our automotive locksmith services or call us at 267-609-9459.
Some keys have this marking as a security measure. For high-security keys with restricted keyways, we need proper authorization. For standard keys with this stamp, we’ll need to verify you’re authorized to duplicate it.
Yes, though some apartment complexes use restricted key systems. If your key is standard, no problem. If it’s restricted, you’ll need authorization from your landlord or property management.
As many as you need. Whether it’s 2 copies or 20, we can handle it.
Yes, standard mailbox keys can be duplicated. USPS arrow keys (for USPS-owned cluster boxes) cannot be duplicated by locksmiths.
Professional equipment, quality blanks, proper calibration, and testing in your actual lock. Hardware store machines work sometimes, but consistency is hit or miss.
Don’t wait until you’re down to your last key. Don’t risk getting a bad copy from a kiosk or hardware store machine.
Call 267-609-9459 to get quality key duplicates made right.
We offer mobile service (we come to you) or shop service throughout Chester County and Delaware County. Fast, accurate, tested copies that work smoothly from day one.
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